typhoon/bare-metal/flatcar-linux/kubernetes/cl/worker.yaml
Dalton Hubble 6a091e245e Remove Flatcar Linux Edge os_image option
* Flatcar Linux has not published an Edge channel image since
April 2020 and recently removed mention of the channel from
their documentation https://github.com/kinvolk/Flatcar/pull/345
* Users of Flatcar Linux Edge should move to the stable, beta, or
alpha channel, barring any alternate advice from upstream Flatcar
Linux
2021-02-20 16:09:54 -08:00

121 lines
4.1 KiB
YAML

---
systemd:
units:
- name: docker.service
enabled: true
- name: locksmithd.service
mask: true
- name: kubelet.path
enabled: true
contents: |
[Unit]
Description=Watch for kubeconfig
[Path]
PathExists=/etc/kubernetes/kubeconfig
[Install]
WantedBy=multi-user.target
- name: wait-for-dns.service
enabled: true
contents: |
[Unit]
Description=Wait for DNS entries
Wants=systemd-resolved.service
Before=kubelet.service
[Service]
Type=oneshot
RemainAfterExit=true
ExecStart=/bin/sh -c 'while ! /usr/bin/grep '^[^#[:space:]]' /etc/resolv.conf > /dev/null; do sleep 1; done'
[Install]
RequiredBy=kubelet.service
- name: kubelet.service
contents: |
[Unit]
Description=Kubelet
Requires=docker.service
After=docker.service
Wants=rpc-statd.service
[Service]
Environment=KUBELET_IMAGE=quay.io/poseidon/kubelet:v1.20.4
ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
ExecStartPre=/bin/mkdir -p /opt/cni/bin
ExecStartPre=/bin/mkdir -p /var/lib/calico
ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
# Podman, rkt, or runc run container processes, whereas docker run
# is a client to a daemon and requires workarounds to use within a
# systemd unit. https://github.com/moby/moby/issues/6791
ExecStartPre=/usr/bin/docker run -d \
--name kubelet \
--privileged \
--pid host \
--network host \
-v /etc/kubernetes:/etc/kubernetes:ro \
-v /etc/machine-id:/etc/machine-id:ro \
-v /usr/lib/os-release:/etc/os-release:ro \
-v /lib/modules:/lib/modules:ro \
-v /run:/run \
-v /sys/fs/cgroup:/sys/fs/cgroup:ro \
-v /sys/fs/cgroup/systemd:/sys/fs/cgroup/systemd \
-v /var/lib/calico:/var/lib/calico:ro \
-v /var/lib/docker:/var/lib/docker \
-v /var/lib/kubelet:/var/lib/kubelet:rshared \
-v /var/log:/var/log \
-v /opt/cni/bin:/opt/cni/bin \
$${KUBELET_IMAGE} \
--anonymous-auth=false \
--authentication-token-webhook \
--authorization-mode=Webhook \
--bootstrap-kubeconfig=/etc/kubernetes/kubeconfig \
--client-ca-file=/etc/kubernetes/ca.crt \
--cluster_dns=${cluster_dns_service_ip} \
--cluster_domain=${cluster_domain_suffix} \
--cni-conf-dir=/etc/kubernetes/cni/net.d \
--healthz-port=0 \
--hostname-override=${domain_name} \
--kubeconfig=/var/lib/kubelet/kubeconfig \
--network-plugin=cni \
--node-labels=node.kubernetes.io/node \
%{~ for label in compact(split(",", node_labels)) ~}
--node-labels=${label} \
%{~ endfor ~}
%{~ for taint in compact(split(",", node_taints)) ~}
--register-with-taints=${taint} \
%{~ endfor ~}
--pod-manifest-path=/etc/kubernetes/manifests \
--read-only-port=0 \
--rotate-certificates \
--volume-plugin-dir=/var/lib/kubelet/volumeplugins
ExecStart=docker logs -f kubelet
ExecStop=docker stop kubelet
ExecStopPost=docker rm kubelet
Restart=always
RestartSec=5
[Install]
WantedBy=multi-user.target
storage:
directories:
- path: /etc/kubernetes
filesystem: root
mode: 0755
files:
- path: /etc/hostname
filesystem: root
mode: 0644
contents:
inline:
${domain_name}
- path: /etc/sysctl.d/max-user-watches.conf
filesystem: root
mode: 0644
contents:
inline: |
fs.inotify.max_user_watches=16184
passwd:
users:
- name: core
ssh_authorized_keys:
- ${ssh_authorized_key}